第一章 1/3节 LAMP概述及PHP的用场

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Release: 2016-06-13 11:00:02
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第一章 1/3节 LAMP概述及PHP的用途
1. 缩写:LAMP=(Linux+Apache+MySql+PHP)(即OS+WebAapp+DB+后台脚本)

2. 问:LAMP是如何工作的?
答:域名->
DNS->
IP:80->
(Linux、Unix(hp-UX,Solaris OpenBSD)、Microsoft Windows Mac Ox RISC OS)->
服务器(apache IIS PWS)->
index.php->
数据库:MySQL、Oracle、Informix、Sybase、MS SQL Server、PostgreSql->
前台语言->
客户端->
浏览器解释

3. 问:PHP能做什么?
答:Unix和Linux环境,特殊的Windows场合直接用命令解释器PHP程序,以及桌面程序(很少用)

4. 选择PHP的原因?
答:PHP开发时间几乎是Java的一半
PHP是解释型,Java是编译型,所以PHP运行速度不如Java
但PHP可以通过静态化,优化来提高运行效率

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source:php.cn
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